131554533 has 16 divisors (see below), whose sum is σ = 194965056. Its totient is φ = 78224640.

The previous prime is 131554519. The next prime is 131554543. The reversal of 131554533 is 335455131.

It is not a de Polignac number, because 131554533 - 2⁹ = 131554021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131554533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131554543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35860 + ... + 39357.

It is an arithmetic number, because the mean of its divisors is an integer number (12185316).

Almost surely, 2^131554533 is an apocalyptic number.

It is an amenable number.

131554533 is a deficient number, since it is larger than the sum of its proper divisors (63410523).

131554533 is a wasteful number, since it uses less digits than its factorization.

131554533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75284.

The product of its digits is 13500, while the sum is 30.

The square root of 131554533 is about 11469.7224465111. The cubic root of 131554533 is about 508.5909239908.

The spelling of 131554533 in words is "one hundred thirty-one million, five hundred fifty-four thousand, five hundred thirty-three".